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<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>

<body>
    <div id="root"></div>
    <script src="../lib/react.js"></script>
    <script src="../lib/react-dom.js"></script>
    <script src="../lib/babel.js"></script>

    <script type="text/babel">
        class App extends React.Component {
            constructor() {
                super()
                this.state = {
                    message: "Hello World"
                }
            }

            render() {
                const { message } = this.state
                return (
                    <div>
                        <h2>{message}</h2>
                    </div>
                )
            }

        }

        const root = ReactDOM.createRoot(document.querySelector("#root"))

        root.render(<App />)





    </script>
</body>

</html>